FAA airworthiness directive publication

AD 2020-24-04

2020-12-14 · Correction notice · Federal Register document 2020-27507

This page records a selected historical publication. Its current legal status, applicability to an individual aircraft and compliance have not been determined. Consult the current FAA directive and aircraft configuration and maintenance records.

This correction remains a separate publication; it is not presented as a newly issued independent directive.

What this historical correction says

Source publication 2020-12-14 · Document 2020-27507.

The notice republishes the complete rule. The complete applicability clause from this reprint is retained below with its conditions unevaluated.

SUPPLEMENTARY INFORMATION: As published, Airworthiness Directive 2020-
24-04, Amendment 39-21334 (85 FR 77991, December 3, 2020), requires 
revising the existing AFM to incorporate procedures for conducting an 
approach with a localizer-based navigation aid, monitoring localizer 
raw data, calling out any significant deviations, and performing an 
immediate go around if the airplane has not intercepted the final 
approach course as shown by the localizer deviation. AD 2020-24-04 
applies to all The Boeing Company Model 787-8, 787-9, and 787-10 
airplanes.
    As published, the regulatory text included errors in certain 
references to the AFM that is required to be revised. The location of 
the AFM text to be revised is incorrectly identified as the 
``Limitations section''; the correct location is the ``Operating 
Procedures chapter.'' In addition, the figure incorrectly identified 
the heading of the AFM text as ``Operating Instructions''; the correct 
heading is ``Autopilot Flight Director System--Operating 
Instructions.''

Correction of Publication

    This document corrects an error and correctly adds the AD as an 
amendment to 14 CFR 39.13. Although no other part of the preamble or 
regulatory information has been corrected, the FAA is publishing the 
entire rule in the Federal Register.
    The effective date of this AD remains December 18, 2020.
    Since this action only corrects errors in certain AFM references, 
it has no adverse economic impact and imposes no additional burden on 
any person. Therefore, the FAA has determined that notice and public 
comment procedures are unnecessary.

Original date wording

DATES: This correction is effective December 18, 2020. The effective 
date of AD 2020-24-04 remains December 18, 2020.

Dates describing the correction and the original rule remain separate as written.

Complete applicability clause in this reprint

(c) Applicability

    This AD applies to all The Boeing Company Model 787-8, 787-9, 
and 787-10 airplanes, certificated in any category.

Literal source labels for discovery: 787-8, 787-9, 787-10. Labels remain as written; series, aliases and engine suffixes are not expanded.

Dated original publication

AD 2020-24-04 · 2020-12-03 · document 2020-26680

SUPPLEMENTARY INFORMATION: As published, Airworthiness Directive 2020-
24-04, Amendment 39-21334 (85 FR 77991, December 3, 2020), requires 
revising the existing AFM to incorporate procedures for conducting an 
approach with a localizer-based navigation aid, monitoring localizer 
raw data, calling out any significant deviations, and performing an 
immediate go around if the airplane has not intercepted the final 
approach course as shown by the localizer deviation. AD 2020-24-04 
applies to all The Boeing Company Model 787-8, 787-9, and 787-10 
airplanes.
    As published, the regulatory text included errors in certain 
references to the AFM that is required to be revised. The location of 
the AFM text to be revised is incorrectly identified as the 
``Limitations section''; the correct location is the ``Operating 
Procedures chapter.'' In addition, the figure incorrectly identified 
the heading of the AFM text as ``Operating Instructions''; the correct 
heading is ``Autopilot Flight Director System--Operating 
Instructions.''

Correction of Publication

    This document corrects an error and correctly adds the AD as an 
amendment to 14 CFR 39.13. Although no other part of the preamble or 
regulatory information has been corrected, the FAA is publishing the 
entire rule in the Federal Register.
    The effective date of this AD remains December 18, 2020.
    Since this action only corrects errors in certain AFM references, 
it has no adverse economic impact and imposes no additional burden on 
any person. Therefore, the FAA has determined that notice and public 
comment procedures are unnecessary.

Each link opens a separate dated source. These words and dates do not determine which directive controls today, aircraft applicability, installed configuration or compliance. No corrected rule body has been merged.

Historical relationship observation unknown

This correction notice is a separate source edition and was not interpreted as a new rule. This does not establish that there are no related or currently applicable directives.

Earlier extraction record

The earlier extraction kept these fields unknown. Its original record is preserved below. Newly retained correction excerpts are shown above; applicability and compliance remain undetermined.

Applicability text in this publication

An applicability clause was not extracted from this publication. Applicability remains undetermined.

Effective-date text

An effective-date observation was not extracted from this publication.

Publication context

A relationship to prior directives has not been established from this publication.

Official sources

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Sources retrieved: HTML 2026-09-08; PDF 2026-09-08.

The displayed text comes from the HTML publication. Refer to the official documents for the original wording.

This selected source edition is not a complete list of current airworthiness directives. Referenced manufacturer service documents are not reproduced here.